i believe a dslr with kit lens 18-55 should be able to fulfill your requirements. you just need full body shots. probably might need a flash if the place you are shooting doesn't have sufficient light.
Most important is good lighting. You DO NOT need a DSLR. A simple point-and-shoot, or even a cellphone cam, is enough. The most important thing is light; shooting next to a window on a bright sunny day is a good start.
Why even bother with a DSLR? It's a blogshop, same as the other 10,000 out there. Considering the low resolution of the posts are, there's no need for high resolution shots and even a point and shoot or cellphone is enough.
I guess for start up, they are afraid to post cos of alot of fear of : backlash, lack of surprise, piracy by others (of photo or ideas ) due to the fact that blogshops are quite similar and the barriers to entry is very low.
For starters, I advise TS, take a photographic shoot of a friend, model or something , WITHOUT your actual product, and post here. We'll help guide you along, then u use the skills acquired to get your actual product shots.